It is always tough losing your job, but you now have to follow Swiss law. Your notice starts with the letter you receive, so your job will probably run until end of February. Read the Forum, lots of info here.
If you are intending to claim unemployment money, you should start applying for jobs, any job
, right now, and keep the advert and a copy of your application. The unemployment office want to see that you have been looking for a new job as soon as you heard you were being dismissed. http://www.treffpunkt-arbeit.ch/